toronto and new york. 19-year-oldjoedzhokhartsarnaevremainsin hospital, now charged with using a weapon of mass destruction. this as the city of boston tries to move on, holding a memorial for the third victim, boston university grad student liu ling zu. moments of silence were held around the country monday in boston. people gathered around the finish line to mark the time when the first bomb exploded. president obama also noted the time at the white house as did traders on the floor of the new york stock exchange. nbc news justice correspondent pete williams has the very latest. >> at 2:38 last monday afternoon, 11 minutes before the first bomb goes off the fbi says, a surveillance camera catches dzhokhar tsarnaev and tamerlan tsarnaev walking towards the finish line with backpacks, a second and crucial piece of video, the fbi says, comes from a surveillance camera mounted on this restaurant. at 2:42, court documents say the still unreleased video shows dzhokhar tsarnaev with a backpack walked towards the scene of a second bombing. at 2:45, he slips his backpack off. still ph

at the hospital. >> molly lion has more.>>dzhokhartsarnaevisunder heavy car at beth israel medical center. sources tell us he is also in stable condition. we are still waiting word on the charges he will face. but we are told the u.s. attorney's office could at any time level the charges. it is possible it could happen while he is still in a hospital bed. we are getting encouraging word on the condition of the officer who was shot during a gun battle with two suspects in water town. richard donahue 33 years old still in critical condition at mount auburn hospital in came blivenlg illy sedated and on a ventilator. he was able to wake up long enough to squeeze his wife's friends. he was also friends with sean collier the mit officer killed in the course before the manned hunt got underway on the streets. one of the victims will be laid to rest. a funeral is being held for 29-year-old kr-- krystle campbe. there will be a moment of silence held for the one week anniversary. much of the state will pause for that at 2:50 p.m. >> molly line live for us. thank you. >> so does dzhokhar tsarnaev ha

to do it with thenames.dzhokhartsarnaevtellingauthorities how and why they planned the attack. >> good morning. dzhokhar tsarnaev remains in serious condition here but now he is facing serious charges as well. the use of a weapon of mass destruction and malicious destruction of property resulting in death. he was arraigned from his hospital bed before a federal magistrate who determine he was alert, mentally competent and lucid. and now we know he has begun to communicate. he was able to nod during this hearing and he said one word -- "no" -- when asked if he could afford a lawyer. court papers line out the time saying tsarnaev was caught in the area before the bombing 11 minutes before and was seen fiddling with his cell phone shortly before the blast. tsarnaev is communicating with authorities revealing the internet provided a lot of information on this attack and there was no foreign help. sources tell abc that tsarnaev claims they had no direct financing from governments or rogue groups -- or rogue groups overseas, and that the younger brother may not have known about this